320 
J. R. MALLOCH. 
which is about equal in length with the last section of the fifth vein ; costa 
to end of fourth vein. 
Length: 2*75 mm. 
Female : Similar in coloration to the male, differing only in being 
rather larger, in having the mesonotum less hairy, and the ovipositor dis¬ 
tinctly protruding, and almost identical with that of parvicornis. 
Locality: Takao, May 3, 1907. One male and one female. 
This species, is very close to parvicornis Loew, differing chiefly in 
the structure of the head, the chætotaxy of the mesonotum and the color 
of the wings. 
10. Agromyza plebeia n. sp. 
This species is so similar to niveipennis that it will be sufficient to 
indicate merely the points of difference. 
The color throughout is more brownish; the orbits have only 5 pairs 
of bristles ; the tarsi are paler in color ; the wings are not whitish, but have a 
slightly yellowish tinge, and their veins are distinct ; while in the female 
the third and fourth veins are more distinctly divergent than in niveipennis . 
Length : 2*5 mm. 
Locality: Takao, May 3, 1907. One male and one female. 
11 . Agromyza nigrita n. sp. 
Female: Deep black, slightly shining. Apex of proboscis brown. Knob 
of halteres clear yellow. Legs black, the tibiæ slightly brownish. Wings 
clear, veins black. Squamæ grayish the margins and fringe almost black. 
Frons opaque, the orbits distinctly glossy at bases of the bristles ; 
frons about one third the width of the head, parallel-sided ; orbits slightly 
differentiated from the center stripe, rather narrow, each about one fourth 
as wide as the center stripe; four pairs of strong orbitals present, situated 
about the middle of the orbits longitudinally, decreasing in size anteriorly, 
the orbits otherwise bare ; frontal triangle not differentiated, ocellar region 
not shining; antennæ moderate in size, third joint rounded, very indistinctly 
pilose; arista very little swollen at base, and for a very short distance, 
bare; length of arista equal to from its base to upper orbital bristle; face 
slightly retreating; cheek linear, but little higher posteriorly than ante¬ 
riorly, maginal bristles of moderate strength, vibrissa slightly differentiated. 
Mesonotum with four pairs of strong dorso-centrals, the anterior two pairs 
weaker than the posterior two pairs, the pair of bristles between the posterior 
dorso-centrals distinct, discal setulæ not very close, but strong, about 
10 rows between the anterior dorso-centrals. Abdomen short, broad at base 
